Monorail switch.



R. A. McCLURE.

MONORAIL SWITCH.

APPLICATION HLED APR. 19, I916.

1,234,91 8 Patented m 31, 1917.

wmvsss l/Vl/EIVTOR UNITED STATES PATENT OFFICE.

ROYAL A. MCCLURE, OF SEATTLE, WASHINGTON, ASSIGNOR TO UNIVERSAL ELEVATEDRAILWAY COMPANY, INCORPORATED, OF SEATTLE, WASHINGTON.

MONORAIL SWITCH.

Specification of Letters Patent. Patented J 11y 31, 1917.

Application filed April 19, 1916. Serial No. 92,078.

To all whom it may concern:

Be it known that I, ROYAL A. MCCLURE, a citizen of the United States,and a resident of Seattle, in the county of King and State ofWashington, have invented certain new and useful Improvements inMonorail Switches, of which the following is a full, true, and exactspecification.

My invention relates to improvements in monorail switches and has forits principal object to provide a hinged switch frame upon which theswitch is mounted and which carries the loads more directly and ischeaper to construct; and to provde an improved toggle operating meansfor moving the switch.

Other objects will appear as my invention is more fully explained in thefollowing specification, illustrated in the accompanying drawings andpointed out in the appended claim.

In the drawings, Figure 1 is a plan of my switch frame. Fig. 2, issubstantially a side elevation of same. Fig. 3 is a sectional elevationon line w-m of Fig. 1.

Referring more particularly to the drawings, numeral 1 indicates bearingposts upon which the switch is supported. The switch proper includestracks A and B, the former straight and the latter curved. The tracks Aand B are arranged to connect the ends of a main line C and a siding Drespectively. The tracks A and B include a stringer 2 and 3respectively. Each stringer has a rail at. The stringers 2 are supportedon posts 5 and upon the spread end of the switch the stringer undertrack B is supported on a toggle post which is composed of members 6, 7and 8, hinged together as shown. Hinges 9 are'provided at the base ofpost 5 and member 8 and at the top of member 7. Between post members 7and 8 a hinge 10 is provided. The tracks A and B are thoroughly bracedtogether and act as a unit. Stops 11 are provided on the ends of lines Cand D to limit the movement of the switch. The switch is operated bymeans of a motor 12 having a pinion 13- which meshes with a rack 14:. Alink 15 connects the end of rack 14 and hinge 10.

When the motor is started, the toggle post 67S is collapsed and theentire switch swings until posts 5 assume a vertical position and thetrack A lines with the line CC and vice versa. Any other convenient formof operating mechanism such as an arrangement of normally operatedlevers may be used to swing the switch. Any desirable form of lockingmechanism may be employed to hold the switch in alinement when once set.

WVhile I have shown a particular form of embodiment of my invention, Iam aware that many minor changes therein will readily suggest themselvesto others skilled in the art without departing from the spirit and scopeof the invention, and I therefore ROYAL A. MOCLURE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. G.

